Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 675 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) a battery cell
2. 2.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
3. 3.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
4. 4.🌈 In VIBGYOR, what number colour is yellow?
5. 5.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) in front of you (c) straight above you (d) under the ground
6. 6.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the amount of water (c) the same glass
7. 7.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a sunny window (d) a mirror
8. 8.🌈 In VIBGYOR, what number colour is orange?
9. 9.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) bright sunlight (c) a sheet of white paper (d) yeast
11. 11.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same white paper (b) the time of day (c) brightness of rainbow (d) the amount of water
13. 13.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so the Sun moves (c) so it does not fall (d) so it gets hot
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) a magnet (d) a sheet of white paper
16. 16.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
18. 18.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) the water is coloured (c) the glass is painted (d) water splits the light
19. 19.🌈 In VIBGYOR, what number colour is red?
20. 20.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
23. 23.🌈 How many colours do we name in a rainbow (VIBGYOR)?
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same glass (b) the amount of water (c) brightness of rainbow (d) the same window
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) False (b) True
26. 26.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) the rainbow fades (c) it floats away (d) it turns all red
27. 27.True or false: a magnet is needed for the water rainbow. (a) False (b) True
28. 28.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) yeast (c) a balloon (d) bright sunlight
29. 29.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) snow falling (c) a shadow of ice (d) a magnet
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) bright sunlight (d) a sheet of white paper
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the time of day (c) the amount of water
32. 32.🌈 In VIBGYOR, what number colour is violet?
33. 33.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) red (c) orange (d) violet
34. 34.🌈 In VIBGYOR, what number colour is indigo?
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a balloon (d) yeast
38. 38.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
39. 39.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) turmeric powder (c) a clear glass of water (d) bright sunlight
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) True (b) False

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